Date: Mon, 10 May 2004 14:47:35 -0400 From: Garance A Drosihn <drosih@rpi.edu> To: "Vivailsud Staff Member" <mor4nt@vivailsud.it>, <freebsd-questions@freebsd.org> Subject: Re: dual processor and FreeBSD 4.9 Message-ID: <p06020418bcc57b942b48@[128.113.24.47]> In-Reply-To: <000801c436ba$f743f720$3a6d3352@CPQ30032148391> References: <000801c436ba$f743f720$3a6d3352@CPQ30032148391>
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At 8:16 PM +0200 5/10/04, Vivailsud Staff Member wrote: >Hello, I am in trouble with FreeBSD 4.9p, I have got dual >processor server (2 x Pentium II 400MHz) and I would like that >FreeBSD could be able to use the both of them. I have read that >you need to compile the kernel once again, but I would like to >know which modifies I should apply to resolve this trouble. When you look under /usr/src/sys/i386/conf, you will see a file called GENERIC. That is the kernel-definition that FreeBSD is distributed with. You will want to make a copy of that file, to whatever file name you want. Maybe call it DUALCPU. Inside the file, you will see the lines: # To make an SMP kernel, the next two are needed #options SMP # Symmetric MultiProcessor Kernel #options APIC_IO # Symmetric (APIC) I/O You will want to uncomment those two 'option' lines, to get: # To make an SMP kernel, the next two are needed options SMP # Symmetric MultiProcessor Kernel options APIC_IO # Symmetric (APIC) I/O Earlier in the same file, you will see the lines: machine i386 cpu I386_CPU cpu I486_CPU cpu I586_CPU cpu I686_CPU ident GENERIC Comment out the lines for 'I386_CPU' and 'I486_CPU', and change the word 'GENERIC' to match the name you have chosen for your kernel configuration. So: machine i386 #cpu I386_CPU #cpu I486_CPU cpu I586_CPU cpu I686_CPU ident DUALCPU You then want to follow the instructions for building a kernel with the filename that you used for the kernel-configuration. -- Garance Alistair Drosehn = gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu
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